Practice
100 thousandEndless problems made on demand, each with an exactly computed answer. Every click is a new one.
Curated
3| # | Title | Difficulty | Source | Tags | |
|---|---|---|---|---|---|
| 20 | The heavier coinWeighing | Medium | Lemma | ||
| 664 | Weights on both pansWeighings | Medium | Classical | ||
| 666 | The counterfeit stackWeighings | Medium | Lemma |